[INFO] fetching crate flac_music 0.2.3...
[INFO] testing flac_music-0.2.3 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate flac_music 0.2.3 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate flac_music 0.2.3
[INFO] finished tweaking crates.io crate flac_music 0.2.3
[INFO] tweaked toml for crates.io crate flac_music 0.2.3 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate flac_music 0.2.3 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate flac_music 0.2.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded symphonia-utils-xiph v0.5.2
[INFO] [stderr]   Downloaded symphonia-metadata v0.5.2
[INFO] [stderr]   Downloaded symphonia-format-ogg v0.5.2
[INFO] [stderr]   Downloaded symphonia-core v0.5.2
[INFO] [stderr]   Downloaded atk v0.9.0
[INFO] [stderr]   Downloaded console_log v0.2.1
[INFO] [stderr]   Downloaded keyboard-types v0.5.0
[INFO] [stderr]   Downloaded druid-derive v0.4.0
[INFO] [stderr]   Downloaded gdk-pixbuf v0.9.0
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[INFO] [stderr]   Downloaded unic-bidi v0.9.0
[INFO] [stderr]   Downloaded fluent-syntax v0.9.3
[INFO] [stderr]   Downloaded ffmpeg-next v5.1.1
[INFO] [stderr]   Downloaded piet-coregraphics v0.3.0
[INFO] [stderr]   Downloaded druid v0.7.0
[INFO] [stderr]   Downloaded piet-direct2d v0.3.0
[INFO] [stderr]   Downloaded druid-shell v0.7.0
[INFO] [stderr]   Downloaded gdk v0.13.2
[INFO] [stderr]   Downloaded xi-unicode v0.2.1
[INFO] [stderr]   Downloaded kurbo v0.7.1
[INFO] [stderr]   Downloaded winnow v0.3.4
[INFO] [stderr]   Downloaded gio v0.9.1
[INFO] [stderr]   Downloaded usvg v0.12.0
[INFO] [stderr]   Downloaded piet-web v0.3.1
[INFO] [stderr]   Downloaded piet-common v0.3.2
[INFO] [stderr]   Downloaded rental-impl v0.5.5
[INFO] [stderr]   Downloaded pico-args v0.3.4
[INFO] [stderr]   Downloaded unicode-general-category v0.2.0
[INFO] [stderr]   Downloaded piet v0.3.1
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[INFO] [stderr]   Downloaded associative-cache v1.0.1
[INFO] [stderr]   Downloaded fluent-bundle v0.12.0
[INFO] [stderr]   Downloaded simple_logger v1.16.0
[INFO] [stderr]   Downloaded symphonia-bundle-flac v0.5.2
[INFO] [stderr]   Downloaded symphonia-codec-adpcm v0.5.2
[INFO] [stderr]   Downloaded symphonia-codec-pcm v0.5.2
[INFO] [stderr]   Downloaded gtk v0.9.2
[INFO] [stderr]   Downloaded utf16_lit v1.0.1
[INFO] [stderr]   Downloaded unic-ucd-bidi v0.9.0
[INFO] [stderr]   Downloaded type-map v0.4.0
[INFO] [stderr]   Downloaded unic-langid-impl v0.9.1
[INFO] [stderr]   Downloaded roxmltree v0.13.1
[INFO] [stderr]   Downloaded symphonia-bundle-mp3 v0.5.2
[INFO] [stderr]   Downloaded symphonia-codec-aac v0.5.2
[INFO] [stderr]   Downloaded intl-memoizer v0.5.1
[INFO] [stderr]   Downloaded freetype v0.5.1
[INFO] [stderr]   Downloaded unic-langid v0.9.1
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[INFO] [stderr]   Downloaded rustybuzz v0.3.0
[INFO] [stderr]   Downloaded symphonia-format-isomp4 v0.5.2
[INFO] [stderr]   Downloaded rental v0.5.6
[INFO] [stderr]   Downloaded core-text v15.0.0
[INFO] [stderr]   Downloaded symphonia-codec-vorbis v0.5.2
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[INFO] [stderr]   Downloaded freetype-sys v0.11.0
[INFO] [stderr]   Downloaded harfbuzz-sys v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3cd50794664da64a7359e087c5168d9069865a4ae6bd664c9fc795a71aeb1ddd
[INFO] running `Command { std: "docker" "start" "-a" "3cd50794664da64a7359e087c5168d9069865a4ae6bd664c9fc795a71aeb1ddd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cd50794664da64a7359e087c5168d9069865a4ae6bd664c9fc795a71aeb1ddd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cd50794664da64a7359e087c5168d9069865a4ae6bd664c9fc795a71aeb1ddd", kill_on_drop: false }`
[INFO] [stdout] 3cd50794664da64a7359e087c5168d9069865a4ae6bd664c9fc795a71aeb1ddd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eab5b40fd6364e9cec35610293b28f7340be12a5fafdc880fc7f6caf52f14e91
[INFO] running `Command { std: "docker" "start" "-a" "eab5b40fd6364e9cec35610293b28f7340be12a5fafdc880fc7f6caf52f14e91", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling thiserror v1.0.39
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling strum v0.18.0
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling bytemuck v1.13.1
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling futures-task v0.3.26
[INFO] [stderr]    Compiling futures-channel v0.3.26
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-sink v0.3.26
[INFO] [stderr]    Compiling futures-util v0.3.26
[INFO] [stderr]    Compiling futures-io v0.3.26
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling anyhow v1.0.69
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling encoding_rs v0.8.32
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "eab5b40fd6364e9cec35610293b28f7340be12a5fafdc880fc7f6caf52f14e91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eab5b40fd6364e9cec35610293b28f7340be12a5fafdc880fc7f6caf52f14e91", kill_on_drop: false }`
[INFO] [stdout] eab5b40fd6364e9cec35610293b28f7340be12a5fafdc880fc7f6caf52f14e91